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Harry Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Harry Nelson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Cornelius & Annie — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Nelson |
| Given Name | Harry A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Sleepy Creek |
| Additional Details | |
| Occupation | Clerk |
| Industry | Social Security |
| Class of Worker | GW |
| Hours Worked | 39 |
| Income (1939) | 600 |
| Highest Grade | C 4 |
| 1935 Residence | West Virginia |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Clerk |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1912 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Mary Nelson | Daughter | — | 2 | ~1938 |
| Harry Nelson | Head | — | 28 | ~1912 |
| Evelyn Nelson | Spouse | — | 23 | ~1917 |
Census Appearances
Son, age 6
Baltimore, Maryland · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 16
Baltimore, Maryland · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harry J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 28
Baltimore-City-County, Maryland · implied b. ~1912 — 3 household members
| Surname | Nelson |
| Given Name | Harry A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Sleepy Creek |
| Occupation | Clerk |
| Industry | Social Security |
| Class of Worker | GW |
| Hours Worked | 39 |
| Income (1939) | 600 |
| Highest Grade | C 4 |
| 1935 Residence | West Virginia |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Harry Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Cornelius Nelson (~0.92 confidence) and mother Annie Nelson (~0.92 confidence) and father Archie Nelson (~0.92 confidence) and mother Ada Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cornelius Nelson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Annie Nelson
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Archie Nelson
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Ada Nelson
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Nelson
Head · 1940 · age 28 · b. ~1912 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01521-00591)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J Morton Phillips | 21 | Son | Salesgirl | Maryland |
| 2 | Harry S Alunnie | 55 | Head | — | Russia |
| 3 | Maude Alunnie | 53 | Wife | — | Maryland |
| 4 | Annie Alunnie | 30 | Daughter | Salesgirl | North Carolina |
| 5 | Reba Alunnie | 25 | Daughter | Salesgirl | North Carolina |
| 6 | Fannie Alunnie | 24 | Daughter | Salesgirl | North Carolina |
| 7 | Elsie Alunnie | 21 | Daughter | Salesgirl | North Carolina |
| 8 | Mary Alunnie | 21 | Aunt | Salesman | North Carolina |
| 9 | Martin Lurie | 23 | Head | Manager | Maryland |
| 10 | Morris Lurie | 62 | Father | Presser | Russia |
| 11 | Ida Lurie | 62 | Mother | — | Russia |
| 12 | Jacob Lurie | 33 | Brother | Presser | Maryland |
| 13 | Frances Furman | 19 | Niece | Stenographer | Maryland |
| 14 | Morris Stein | 46 | Brother in Law | Barber | Maryland |
| 15 | Lena Stein | 39 | Sister | — | Maryland |
| 16 | Bernard Stein | 17 | Nephew | — | Maryland |
| 17 | Ruth Stein | 12 | Niece | — | Maryland |
| 18 | Alfred Silverman | 41 | Head | Fitter | Poland |
| 19 | Celia Silverman | 35 | Wife | Handsewer | Russia |
| 20 | Aaron Rothstein | 73 | Head | — | Russia |
| 21 | Rachel Rothstein | 70 | Wife | — | Russia |
| 22 | Mary Rothstein | 43 | Daughter | Music Teacher | Maryland |
| 23 | Nettel Berman | 49 | Daughter | — | New York |
| 24 | Nathan Rosenberg | 68 | Head | — | Poland |
| 25 | Annie Rosenberg | 64 | Wife | — | Russia |
| 26 | Julius Rosenberg | 36 | Son | Agent | New York |
| 27 | Evelyn Rosenberg | 27 | Daughter | Salesgirl | New York |
| 28 | Fanny Schabaner | 47 | Head | Hand Sewer | Russia |
| 29 | Rose Schabaner | 25 | Daughter | Cake Wrapper | Maryland |
| 30 | Harry A Nelson THIS PERSON | 28 | Head | Clerk | Maryland |
| 31 | Evelyn P Nelson | 23 | Wife | — | Virginia |
| 32 | Mary A Nelson | 2 | Daughter | — | West Virginia |
| 33 | Roy Mcmillen | 25 | Head | Salesman | Georgia |
| 34 | Alice Mcmillen | 30 | Wife | — | Alabama |
| 35 | Milton Strauss | 40 | Head | Salesman | Maryland |
| 36 | Ida Strauss | 38 | Wife | — | Russia |
| 37 | Jackie Strauss | 19 | Son | — | Maryland |
| 38 | Pearl Strauss | 13 | Daughter | — | Maryland |
| 39 | William Ziegler | 25 | Head | — | Germany |
| 40 | Philip Cohen | 54 | Head | Window Cleaning | Russia |
Related Census Records
Pedigree Summary
Harry
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)